The mobility of the electrons in matter. Tightly bound electrons make for poor conductors.
Covalent
Most of the metals are good conductors of heat and electricity. Exception to this rule is silver and copper. Spoons made out of silver and copper pans used in cooking does not conduct heat easily.
Some nonmetallic materials are good conductors, graphite being an example. In this form, it is considered a semi-metal for that reason. Normally, however, nonmetals are not good electrical conductors.
(in short) No, whilst in their solid state ionic crystals are very poor conductors of electricity, however when molten or dissolved their ions are able to carry charge, therefore they are very good conductors of electricity when molten or dissolved in e.g. water. Pure water is a very poor electrical conductor too, it's the dissolved ions that carry the charge.
Iodine crystals are very poor conductors of heat and electricity
Yes.
Coins are made of metal and metals are good conductors of electricity.
yes
They are insulators.
Electricity
Non metals are poor conductors of heat and are not conductors of electricity , except for carbon , which is can conduct a little bit of electricity. Non metals are poor conductors of heat and are not conductors of electricity , except for carbon , which is can conduct a little bit of electricity.
All Non-Metals are poor conductor of electricity.
Alloys are a combination of two or more elements. Not all alloys are poor conductors, in fact many are used specifically as conductors.
metals are shiny and good conductors of heat and electricity. Nonmetals are dull and poor conductors of heat and electricity.
Conducting electricity or heat.
they are poor electricity and heat conductors
most non ferrous materials are poor conductors with exceptions